Liquid-ejecting apparatus.



H. K. SMITH.

LIQUID BJEGTING APPARATUS.

APPLICATION FILED MAR. laos.

950,410. Patented Feb.22, 1910.

3 SHEETS-SHEET 1.

qxmmeowo vento/v HHMPTUN K S M1 TH H. K. SMITH.

LIQUID BJBQTING APPARATUS.

APPLIOATION FILED MAE. 6, 190B.

3 SHEETS-SHEET Z.

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Snom/Lto@ HQMP TUN K. .SMI T H H. K. SMITH.

LIQUID BJECTING APPARATUS.

APPLIUATION FILED MAB. e, 190s.

950,41 O. Patented Feb. 22, 1910.

8 SHEETS-SHEET 3.

HAMPTON K. SMITH, 0F UNIOIISLSOUTH CAROLINA.

LIoUID-EJECTING ARPABATUS.

Speoioation of Letters Patent.

Patented Feb. 22, 1910.

Application led M arch 6, 1908. Serial No. 419,556.

To all whom it may concern:

Be it known that I, HAMPTON K. SMITH, a citizen of the United States, and a resident of Union, Union county, South Carolina, have made certain new and useful Improvements in Liquid-Ejecting Apparatus, of which the following is a specification.

This invention is an improvement in apparatus for dispensing liquids, adapted for use in ejecting soda water Syrups and mineral waters and other liquids, and theinvention consists in certain novel constructions and combinations of parts as will be hereinafter described and claimed.

In the drawings, Figure l is a frontelevation of my improved apparatus. Fig. 2 is a vertical longitudinal section thereof, the pumping piston being shown in its lowermost position. Fig. 3 is a detail view ofthe piston showing the valves thereof. Fig. 4 is a section somewhat similar to Fig. 2, and showing the piston at the end of its pumping stroke. Fig. 5 is a horizontal section showing the circuit closing mechanism. Fig.

`6 is an enlarged detail view illustratimr the construction at the upper end of the cylinder and the connection between the contacts thereof and the casing. Fig. 7 is a' detail partial cross section of the cylinder through the contacts thereof. Fig. 8 is a detail perspective view showing the rail of the casing and the cover plate thereof detached parts being broken away and others shown in section. Fig. 9 is a detail topplan View showing the cylinder partly in section and partly within the face plate, and Fig. 10 is a diagrammatic view 1 lust-rating the circuits.

In the construction shown, I illustrate a jar A which may be a syrup jar or other suitable liquid containing vessel, and this jar is rovided at or near its upper end with a nipp e A which inclines upwardly toward its outer end. This nipple A affords means for the introduction of a cylinder B which extends through the nipple A into the jar and preferably to the bottom of the jar resting at its lower end on the jar bottom and receiving at its upper end a ring or band C threaded on the cylinder B and bearing against a face plate D. By this construction the cylinder is supported at its inner lower eI/fd upon the bottom of the jar and at its outerend upon the face plate D, thus firmly supporting the cylinder in position for use.

At its lower end, the cylinder has an opening B through which the liquid may pass from the jar into the lower end of the cylinder and a piston E o crates within the cylinder and the lower en of the piston has c eck valves E and E2 to permit the passage of the liquid through the piston, and the piston has its rod F extending Within a solenoid G, so the piston may be operated as the magnet is energized. The magnet G provided in connection with the cylinder, preferably fits within then er end of the cyllnder and is shown as a double mavnet, that is to say, having magnet portions and Gr2 at its opposite ends. The piston rod F operates within the magnet, is made tubular for the passage of the liquid, is arranged at its upper end to dischar e through the bore of the magnet to a tube leadino` to the outlet nozzle and near its lower end the rod F is slotted at F to permit the liquid to pass throu h the valves of the piston and thence throng the opening F into the hollow iston rod whence-it may be discharged on tie upward stroke of the piston to the tube H and thence to the nozzle.

In the general operation of this construction, when the parts are in the position shown in Fig. 4, that is to say, with the piston E np against the magnet, a circuit is closed to energize the magnet portion Gr.

This will operate to draw the nnslotted part of the piston rod F toward the center of the coil G and to force the piston to its lowermost position to permit the cylinder to lill above the piston and then a circuit is closed to energize the magnet portion G2 which will operate upon the core or piston rod F and readjnst the piston to the position shown in Fig. 4, such operation forcing the li uid above the piston out through the tu c F and connecting tube H, as desired. I thus provide, in connection with the cylinder and the pumping piston operating therein, magnets which can be independently energized to o erate the piston first in one directlon and tlien in the other and I construct this magnet in solenoid form so the piston rod may form the core of the magnet and the liquid can be discharged through the said piston rod and through the magnet, thus furnishing a simple and cornpact construction, as shown. Feed wires K, and K whichv may lead from a street service or other source of electrical supply con- J2, and J5 corresponding neet with the casing at K2, K2 and extend thence as shown in Fig. 5, and in the d1arammatical views Fig. 10. The casing or rame has a bar I carrying the spring contact points I', I2, I2, I2, and I5. The cylinder is provided with contact polnts J J 2, J 3, respectively with the contacts I', to I5 an movin into electrical connection with their sai respective contacts when the cylinder is moved into position for use as shown in Figs. 2, 4 and The intermediate contact point J 3 1s branched by a wire z" -on the feed wire K and the contact point J is branched by a wire 2 and Wire N3 on the feed wire K.

The cylinder B carries a small lamp L which is interposed in an open circuit whose terminals are connected with the contacts J and J2. The winding of the solenoid G2 has its terminals g2 and g2 connected with the contact points J 2 and J5, and the winding of the solenoid G has its terminals and g connected with the contact points .ils and J 2 respectively. The lamp L and the solenoids as before described are carried by the cylin der and thel electrical connections between said lamp and the solenoids and the contact points J to J5 inclusive are all carried by the cylinder.

In connection with the described construction I rovide means for closing the electrical clrcuits including the lower ma net G, and also for closing the circuit inc uding the upper magnet G2,and I close these circuits in succession first closin the circuit of the magnet G and then closing the circuit of the magnet G2, and when the circuit including the magnet G2 is closed I also close the lamp circuit to light the lamp, this being effected simultaneously with the pumping` stroke of the piston. To this end I provide a movable circuit closer` in the form of a push button M actuated outwardly by a spring M and having at its inner end a portion M2 which forms a bridge between the terminals of the two electric circuits presently described.

The bridge M2 operates in connection with terminals N, N and N2. The terminal N connects bya wire N3 with the feed wire K and by a wire 2 with the contact J. The terminal N connects by a wire N2 with the contact J 2 and the contact N2 connects by a wire N5 with the contact J2 and by a wire N6 with the contact J5. l

The push button M may be curved onits outer side as best shown in Fig. l0, so a glass may be pushed against the button to force the same in to close the circuits. As the button is pushed in, the circuit is first closed at N, N. rIhis will close the circuit including the magnet G through the wires Ns from the feed wire K and wires N2, g', g, and i to the feed wireK. A further inward movement of the push button will break the circuit between the su ply wires, K K and the coil G and will c ose the circuit at N and N2, such circuit including the magnet G2 and being closed through thewires N to the feed wire K, and N, g2, g2, 'and i to the feed wire K. Thus as the button is pushed in I first energize the magnet G` which acting upon the core F will move the piston to the bottom of the cylinder as shown in Fig. 2 and then the magnet coil G will be denergized due to the interruption of its circuit in the rogressive movement of the brid e M2 and) the magnet G2 will bc energize and acting upon the core F will actuate the piston E in its pumping stroke to force the liquid out. When the bridge M2 closes the circuit. to magnet coil G2 it will simultaneously close the circuit N5, N5 and light the lamp) L.

Anadjusta le stop in the form of a screw F2 is provided at the lower end of the cylinder to limit the downward movement of the piston and thus' enable me to regulate the amount of liquid discharged at each discharge of the piston.

The tubular core F is preferably nickelplated on its outer and inner sides, as shown at F3 in Fig. 6, or otherwise provided with a protecting coating to prevent the oxidation of the said tube or other bad eEect from the contact of the metal with the liquid being dispensed. l

The liquid is discharged in the tube H and thence through a check valve H to the nozzle H2 whence it is discharged to a glass placed below it, as shown in Fig. 4.

The face plate D is provided at its upper end with a tubular portion D which is notched in its upper side at D2 to receive the insulating block D3 on the cylinder and carrying the contact points J to J5 as shown in Fig. 9, and this insulating block D3 when fitted in the slot D2 secures the cylinder from turning within the face plate and properly alines the said contact points from J to J5 with their corresponding contact points I', I5

mounted on the frame, the said contact points I to I5 being guarded and protected by a cover plate I6 shown detached in Fig. 8 and applied in Figs. l, 2, and 6.

The contact points J to J5 are secured firmly within the insulating block D3 and the electrical connections leading from said contact points to the lightL and to the magnets G and G2 are within the casing B and the outward extension B10 thereof and thus out of the way so that they cannot be tampered with by meddlers. An extension B10 is secured on the outer end of the cylinder and ineloses the pipe H vand the nozzle H2 and carries at its outer end the lamp L which is visible through a lens L, as above shown in Figs. 2, 4 and 9 of the drawing.

The glass to receive the liquid dispensed rests upon a shelf O, which may drain through a pipe O and any leakage from the jar A'may ischarge through a pipe 1 as shown in Figs. 2 and 4 of the drawing.

In the operation of my invention, it will be noticed that the li uid is discharged through the lsolenoid an through the hollow piston rod forming the core of the solenoid magnet, andthe piston is operated positively 1n both directions by the magnet as before described,l and in practice the piston may be made of very light material to avoid its gravity operating to any considerable extent in opposition to the magnets.

Manifestly, the invention can becarried out in connection with the single jar` as before described or a plurality of said jars may be operated side by side as illustrated in Fig. 1 and this latter arrangement will be found especially useful in soda water fountains and other apparatus for dispensing various kinds of drinks, such for instance as mineral waters.

The tubular portion D of the face plate fits within the inclined nipple A of the jar A and projects at its inner end beyond said nipple, as best shown in Figs. 2, 4 and 6, and is threaded at such end at D4 to receive a band D5 screwed thereon and operating to secure the tube D firmly within the inclined nipple of the jar A.

As best shown in Figs. 4, 6 and 9, the band C secured on the outer end of the cylinder bears against the face .plate D and also operates to secure the extension B1 to the outer end of the cylinder.

The fountain construction proper disclosed herein, forms the subject matter of a separate application for patent which I am about to file.

lVhat 1 claim is:

1. The combination, of a cylinder, a solenoid in connection with said cylinder, and a piston outside of the solenoid and operating in the cylinder, and having its rod forming the solenoid core and made hollow whereby a liquid may be passed through the hollow piston rod and through the solenoid in which said rod reciprocates, the piston having a passage communicating with that of its rod.A

2. The combination with a cylinder, of a solenoid having a pair of magnet portions, and a piston outslde of the solenoid and moving toward and from' the end thereof and operating in the cylinder and having a hollow piston rod forming the solenoid core, the piston having a passage communicating with that of its rod, and means whereby the opposite magnet portions may be energized to effect a positive movement ofthe piston in opposite directions.

3. The combination in a liquid ejccting apparatus, of a cylinder, a solenoid in the upper end of the cylindenand having magnet portions, and a piston in the cylinder and below the solenoid and having a hollow piston rod forming the core of the solenoid.

4. The combination with a cylinder and a piston operating therein and having a hollow rod forming a solenoid core, of a solenoid connected with the cylinder' and havin outer and inner magnet portions, electrlcal circuits including said portions, means for closing'said circuits in succession, a lamp, and a circuit including said lamp and having a common closer with the circuits of one of the magnet portions.

5. The combination in a liquid ejecting apparatus with a solenoid having two magnet portions, and a pumping piston operated thereby, of a lamp, a clrcult including said lamp and one of the magnet portions, a circuit including the other magnet portion, and a circuit closer operating to close said circuits in succession, thecircuits being normally open all substantially as described whereby the operation of the circuit closer will act to energize one of the magnets without lighting the lamp and will then operate to enervize the other magnet and light the lamp, a l substantially as set forth.

6. The combination of a cylinder, upper and lower magnets, a hollow piston rod forming the core of the magnets and having a piston `coperating with the cylinder to form a pump, a switch, and electrical connections between the switch and the magnets and operating to energize the lower magnet and then the upper magnet by a continuous movement of the switch in one direction.

7. An apparatus comprising a cylinder, electromagnets, a piston in the cylinder beyond the electromagnets, a rod extending from the piston in the electromagnets and forming a solenoid core, and circuits controlling the magnets whereby one magnet may be caused to operate the piston in one direction and the other magnet to operate in the other direction, the piston rod being hollow and forming a conduit for the pumped liquid, and the piston having a passage communicating wlth that of its rod, substantially as set forth.

8. The combination in a liquid ejecting apparatus of a cylinder, an extension connected with the outer end of the cylinder, a lamp at the outer end of said extension, a nozzle and connecting pipe between said lamp and cylinder, a solenoid magnet in the outer end of the cylinder, and a piston havin a tubular rod forming the core of the so enoid and lischarginfr at its outer end to the connecting pipe leading to the nozzle at the pumping stroke in the piston.

9. The combination in a liquid ejecting apparatus, of a solenoid having a pair of magnets, a cylinder beyond the end of the solenoid and in close proximity thereto, a piston in said cylinder and a hollow piston rod extending from said piston into the solenoid und forming the col-c thereof, and ai adjustable stop for said piston whereby to conduit for the discharged liquid. regulate thc amount of liquiddischarged by 10. The combination of a cylinder, a son the piston. lenoid in connectiontherewith, a piston oper- HAMPTON K. SMITH. ating in the cylinder and having a hollow Witnesses:

rod formin a solenoid, and a conduit for SOLON C. KEMON, the liquid discharged by said piston, and an PERRY B. TURPIN. 

